filter property

String? filter

Restricts messages exported to those matching a filter, only applicable to PubsubDestination.

The following syntax is available: * A string field value can be written as text inside quotation marks, for example "query text". The only valid relational operation for text fields is equality (=), where text is searched within the field, rather than having the field be equal to the text. For example, "Comment = great" returns messages with great in the comment field. * A number field value can be written as an integer, a decimal, or an exponential. The valid relational operators for number fields are the equality operator (=), along with the less than/greater than operators (<, <=, >, >=). Note that there is no inequality (!=) operator. You can prepend the NOT operator to an expression to negate it. * A date field value must be written in the yyyy-mm-dd format. Fields with date and time use the RFC3339 time format. Leading zeros are required for one-digit months and days. The valid relational operators for date fields are the equality operator (=) , along with the less than/greater than operators (<, <=, >, >=). Note that there is no inequality (!=) operator. You can prepend the NOT operator to an expression to negate it. * Multiple field query expressions can be combined in one query by adding AND or OR operators between the expressions. If a boolean operator appears within a quoted string, it is not treated as special, and is just another part of the character string to be matched. You can prepend the NOT operator to an expression to negate it. The following fields and functions are available for filtering:

• message_type, from the MSH-9.1 field. For example, NOT message_type = "ADT". * send_date or sendDate, the yyyy-mm-dd date the message was sent in the dataset's time_zone, from the MSH-7 segment. For example, send_date < "2017-01-02". * send_time, the timestamp when the message was sent, using the RFC3339 time format for comparisons, from the MSH-7 segment. For example, send_time < "2017-01-02T00:00:00-05:00". * create_time, the timestamp when the message was created in the HL7v2 store. Use the RFC3339 time format for comparisons. For example, create_time < "2017-01-02T00:00:00-05:00". * send_facility, the care center that the message came from, from the MSH-4 segment. For example, send_facility = "ABC". Note: The filter will be applied to every message in the HL7v2 store whose send_time lies in the range defined by the start_time and the end_time. Even if the filter only matches a small set of messages, the export operation can still take a long time to finish when a lot of messages are between the specified start_time and end_time range.

Implementation

core.String? filter;